From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Ada, the best language with the not-so-best tool chain
Date: Tue, 9 Oct 2012 11:33:07 +0200
Date: 2012-10-09T11:33:07+02:00 [thread overview]
Message-ID: <ug7s8u96qj1h.1f66y8q2wb705.dlg@40tude.net> (raw)
In-Reply-To: k4vcab$6bq$1@dont-email.me
On Mon, 8 Oct 2012 20:16:12 +0000 (UTC), Simon Clubley wrote:
>> Anyway, the thingy should run Linux. I believe there was a GNAT for ARM
>> somewhere. Maybe others could point out its status.
>
> Why ? For a number of projects, running Linux would be serious overkill
> and, on a technical level,
Networking
> would not be suitable if you have hard real
> time requirements (although there are various RT extensions which might
> be suitable in some circumstances).
Huh, are you building bombs, guys? (:-)) For most physical processes 1ms,
even 10ms cycle is more than enough. Linux can easily deliver you 1ms
cycle.
Furthermore, I didn't see the specifications of the GPIO, but I suspect
that the time it needs to multiplex (how many A/D converters it actually
has?) and to convert all inputs and outputs could be well over 10ms.
And who is talking about performance while choosing an ARM?
> GNAT is running on ARM under RTEMS. I don't know what the current bare
> metal status is for ARM, although people have posted in the past in
> c.l.a about work they have done on this.
The real trouble with an OS like Linux is the boot time. Some applications,
in automotive, for example, require boot time under 1s. Which is quite a
challenge.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2012-10-09 9:32 UTC|newest]
Thread overview: 170+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-07 17:34 Ada, the best language with the not-so-best tool chain Patrick
2012-10-07 18:43 ` Dmitry A. Kazakov
2012-10-07 22:35 ` Simon Clubley
2012-10-08 7:35 ` Dmitry A. Kazakov
2012-10-08 12:10 ` The Ada community's attitude, was: " Simon Clubley
2012-10-09 9:20 ` pavel.klinkovsky
2012-10-12 12:09 ` Lucretia
2012-10-12 12:47 ` Simon Clubley
2012-10-12 12:59 ` Lucretia
2012-10-16 20:05 ` Simon Clubley
2012-10-16 20:10 ` phone.john.kern
2012-10-18 14:14 ` Lucretia
2012-10-18 17:05 ` Simon Clubley
2012-10-12 13:28 ` kalvin.news
2012-10-11 4:04 ` Yannick Duchêne (Hibou57)
2012-10-07 18:49 ` Shark8
2012-10-07 20:21 ` Patrick
2012-10-08 7:31 ` Dmitry A. Kazakov
2012-10-08 11:28 ` Simon Clubley
2012-10-08 12:49 ` Dmitry A. Kazakov
2012-10-08 12:40 ` Georg Bauhaus
2012-10-08 13:00 ` Dmitry A. Kazakov
2012-10-08 13:57 ` Patrick
2012-10-08 14:02 ` Patrick
2012-10-08 19:53 ` Rego, P.
2012-10-08 20:27 ` Niklas Holsti
2012-10-08 14:00 ` Georg Bauhaus
2012-10-08 14:22 ` Dmitry A. Kazakov
2012-10-08 14:30 ` Georg Bauhaus
2012-10-08 16:12 ` Dmitry A. Kazakov
2012-10-08 16:54 ` Patrick
2012-10-08 18:22 ` Dmitry A. Kazakov
2012-10-08 18:29 ` Patrick
2012-10-08 19:27 ` Dmitry A. Kazakov
2012-10-08 20:44 ` Simon Clubley
2012-10-09 9:13 ` Dmitry A. Kazakov
2012-10-09 9:59 ` Georg Bauhaus
2012-10-09 12:16 ` Dmitry A. Kazakov
2012-10-09 15:06 ` Georg Bauhaus
2012-10-09 16:53 ` Dmitry A. Kazakov
2012-10-18 21:53 ` Randy Brukardt
2012-10-19 11:23 ` Mark Lorenzen
2012-10-19 14:09 ` Patrick
2012-10-19 14:47 ` Yannick Duchêne (Hibou57)
2012-10-19 14:56 ` Patrick
2012-10-19 15:04 ` Vinzent Höfler
2012-10-19 17:30 ` Simon Clubley
2012-10-19 18:07 ` Yannick Duchêne (Hibou57)
2012-10-19 19:05 ` Georg Bauhaus
2012-10-19 19:14 ` Jeffrey Carter
2012-10-19 18:24 ` Anh Vo
2012-10-19 18:40 ` Adam Beneschan
2012-10-19 21:44 ` Jeffrey Carter
2012-10-19 22:28 ` Brian Drummond
2012-10-20 10:57 ` Yannick Duchêne (Hibou57)
2012-10-20 23:08 ` Brian Drummond
2012-10-19 15:38 ` Dmitry A. Kazakov
2012-10-19 22:08 ` Brian Drummond
2012-10-24 9:56 ` Paul Rubin
2012-10-24 11:21 ` Simon Clubley
2012-10-24 13:13 ` kalvin.news
2012-10-24 16:16 ` Paul Rubin
2012-10-24 16:27 ` Yannick Duchêne (Hibou57)
2012-10-24 16:41 ` Paul Rubin
2012-10-24 16:57 ` Yannick Duchêne (Hibou57)
2012-10-24 17:36 ` Paul Rubin
2012-10-24 17:55 ` Niklas Holsti
2012-10-24 21:17 ` Brian Drummond
2012-10-24 22:08 ` Paul Rubin
[not found] ` <4dqg885bcf05isnup07a28jrq8lbq5fknd@invalid.netcom.com>
2012-10-24 22:31 ` Paul Rubin
2012-10-25 8:42 ` Brian Drummond
2012-10-29 14:51 ` mjsilva
2012-10-08 23:04 ` Patrick
2012-10-08 23:07 ` Patrick
2012-10-09 8:35 ` Dmitry A. Kazakov
2012-10-08 21:28 ` Ludovic Brenta
2012-10-08 23:58 ` Patrick
2012-10-09 5:59 ` Niklas Holsti
2012-10-09 8:02 ` kalvin.news
2012-10-09 8:06 ` kalvin.news
2012-10-10 5:56 ` Stephen Leake
2012-10-10 6:48 ` Niklas Holsti
2012-10-10 7:06 ` Ludovic Brenta
2012-10-10 8:17 ` Niklas Holsti
2012-10-12 12:27 ` Lucretia
2012-10-12 12:45 ` Simon Clubley
2012-10-12 12:58 ` Lucretia
2012-10-09 8:10 ` Brian Drummond
2012-10-10 15:26 ` Tero Koskinen
2012-11-08 9:36 ` Jacob Sparre Andersen
2012-11-08 13:52 ` Rego, P.
2012-11-08 21:50 ` Brian Drummond
2012-11-09 1:24 ` Randy Brukardt
2012-11-09 10:16 ` Brian Drummond
2012-11-10 8:05 ` Randy Brukardt
[not found] ` <ulat9855qcom15kt7lk68rsidf44uau4q5@invalid.netcom.com>
2012-11-15 1:21 ` Randy Brukardt
2012-12-17 16:33 ` Brian Drummond
2012-12-17 17:57 ` Shark8
2012-12-25 9:29 ` Paul Rubin
2012-12-26 10:38 ` Brian Drummond
2012-12-25 10:11 ` Niklas Holsti
2012-12-26 10:40 ` Brian Drummond
2012-10-08 19:17 ` kalvin.news
2012-10-08 20:16 ` Simon Clubley
2012-10-09 9:33 ` Dmitry A. Kazakov [this message]
2012-10-09 9:57 ` kalvin.news
2012-10-09 12:31 ` Dmitry A. Kazakov
2012-10-09 12:51 ` kalvin.news
2012-10-09 13:01 ` Dmitry A. Kazakov
2012-10-09 12:04 ` Simon Clubley
2012-10-09 13:18 ` Dmitry A. Kazakov
2012-10-09 15:53 ` kalvin.news
2012-10-09 17:08 ` Dmitry A. Kazakov
2012-10-09 18:26 ` kalvin.news
2012-10-09 20:40 ` Dmitry A. Kazakov
2012-10-09 23:23 ` Simon Clubley
2012-10-10 7:36 ` Dmitry A. Kazakov
2012-10-10 13:13 ` Simon Clubley
2012-10-10 13:45 ` kalvin.news
2012-10-10 15:44 ` Rego, P.
2012-10-10 17:52 ` Simon Clubley
2012-10-10 15:40 ` Rego, P.
2012-10-10 16:09 ` Dmitry A. Kazakov
2012-10-11 9:41 ` Yannick Duchêne (Hibou57)
2012-10-11 12:01 ` Dmitry A. Kazakov
2012-10-09 12:29 ` Vinzent Hoefler
2012-10-09 12:55 ` Dmitry A. Kazakov
[not found] ` <hok878l1k7s5i37k8uejv91t82ad41pipg@invalid.netcom.com>
2012-10-09 17:23 ` Dmitry A. Kazakov
2012-10-11 15:44 ` mjsilva
2012-10-11 16:20 ` Dmitry A. Kazakov
2012-10-11 16:55 ` mjsilva
2012-10-08 20:29 ` Simon Clubley
2012-10-08 20:49 ` Simon Clubley
2012-10-11 15:22 ` mjsilva
2012-10-11 15:52 ` Yannick Duchêne (Hibou57)
2012-10-11 16:00 ` Patrick
2012-10-11 16:31 ` Dmitry A. Kazakov
2012-10-11 16:52 ` Niklas Holsti
2012-10-16 20:15 ` phone.john.kern
2012-10-18 22:33 ` Randy Brukardt
2012-10-18 22:52 ` Jeffrey Carter
2012-10-18 23:14 ` Randy Brukardt
2012-10-19 0:46 ` Jeffrey Carter
2012-10-18 23:58 ` Yannick Duchêne (Hibou57)
2012-10-19 22:49 ` Tero Koskinen
2012-10-22 14:25 ` mjsilva
[not found] ` <be26881c-6662-4830-b86f-34a7d8b25bf4@googlegroups.com>
2012-10-22 15:04 ` Yannick Duchêne (Hibou57)
2012-10-16 20:08 ` phone.john.kern
2012-10-08 18:34 ` Simon Wright
2012-10-08 18:57 ` Patrick
2012-10-08 20:13 ` Rego, P.
2012-10-07 20:33 ` Niklas Holsti
2012-10-11 16:22 ` mjsilva
2012-10-08 12:02 ` kalvin.news
2012-10-08 20:48 ` Niklas Holsti
2012-10-09 3:03 ` Stephen Leake
2012-10-09 3:24 ` Patrick
2012-10-09 5:44 ` Niklas Holsti
2012-10-10 5:52 ` Stephen Leake
2012-11-08 8:07 ` Jacob Sparre Andersen
2012-11-09 12:29 ` Stephen Leake
2012-11-09 12:56 ` Dmitry A. Kazakov
2012-11-20 21:25 ` Tero Koskinen
2012-11-20 22:15 ` Niklas Holsti
2012-11-21 16:18 ` Lucretia
2012-10-10 11:04 ` kalvin.news
2012-10-11 17:44 ` mjsilva
2012-10-16 20:13 ` phone.john.kern
2012-11-07 14:02 ` Kristoffer Nyborg Gregertsen
2013-01-02 7:01 ` Diogenes
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox